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LOCTITE ABLESTIK QMI536NB

  • Item Name: LOCTITE ABLESTIK QMI536NB
  • Manufacturer: Henkel Corporation
  • Product category: Die attach adhesive
  • Applications: Die attach for stacked die applications requiring very low stress and robust mechanical properties
  • Color: White
  • Cure type: Heat cure
  • Package size: Contact to Avantek for details.
  • Shelf life: 12 months

1. Product Overview
LOCTITE ABLESTIK QMI536NB is a low-bleed, non-conductive, PTFE-filled paste designed for stacked die applications requiring low stress and strong mechanical properties. It offers fast curing, high resistance to delamination and popcorning, and enhanced reliability across various surfaces, including solder resist, flexible tape, bare silicon, and die passivations.

2. Applications

  • Die attach for stacked die applications
  • Suitable for use on solder resist, flexible tape, bare silicon, and die passivations
  • High resistance to lead-free solder reflow temperatures

3. Typical Properties

Property Value
Uncured Material
Appearance White
Specific Gravity @ 25°C 1.37
Pot Life @ 25°C 12 hours
Shelf Life @ -40°C 365 days
Viscosity @ 25°C 10,000 cps
Thixotropic Index 5
Curing Performance
Recommended Cure 30 minutes @ 150°C
Cured Material
Coefficient of Thermal Expansion (ppm/°C) α1: 80, α2: 150
Glass Transition Temperature (Tg) -30°C
Extractable Ionic Content (ppm) Cl⁻ <20, Na⁺ <20, K⁺ <20, F⁻ <20
DMA Modulus @ 25°C 0.3 GPa
Die Shear Strength (1 mil BLT, 300×300 mil die) >100 kg (on ceramic)

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